Psychosocial Factors Associated With Physical Activity Among Low-Income Overweight or Obese Mothers with Young Children.

Purpose: Investigate the associations between psychosocial factors and physical activity. Design: Secondary data analysis utilizing baseline data of a large-scale community-based randomized controlled lifestyle behavior intervention. Setting: The Special Supplemental Program for Women, Infants, and Children in Michigan, USA. Subjects: Low-income overweight or obese mothers with young children (N = 740, 65% response rate). Measures: Survey data were collected via phone interview. Predictors included self-efficacy, autonomous motivation, emotional coping, and social support. Self-reported leisure physical activity was the outcome variable. Covariates were age, race, smoking, employment, education, body mass index, and postpartum status. Analysis: A multiple linear regression model was applied. Results: Self-efficacy (β =.32, 95% CI =.11,.52, P =.003) and autonomous motivation (β =.10, 95% CI =.03,.17, P =.005) were positively associated with physical activity. However, emotional coping and social support were not associated with physical activity. Conclusion: Future research should examine the longitudinal association of key psychosocial factors with physical activity. [ABSTRACT FROM AUTHOR]